baber/WOPTO huggingface dataset:
Patent CA-1127179-A (CA)
Title: Preparation of butanedicarboxylic  esters
Inventor: KUMMER RUDOLF
IPC: C07C67/08
Filed: 1980-05-15
Granted: 1982-07-06
Abstract: O.Z. 0050/033918 Abstract of the disclosure:     A process for the pre-paration of butanedicarboxylic acid esters, wherein a)  an aqueous cobalt salt solution is treated, at from 50 to 200°C and under a pressure of from 50 to 500 bar, with excess carbon monoxide and hydrogen in the presence of active charcoal which has been laden with cobalt carbonyl, b)  the resulting aqueous solution of cobalt carbonyl hydride is extracted with butadiene or a butadiene-containing hydrocarbon mixture and the aqueous phase is separated off, c)  the butadiene, or butadiene/hydrocarbon mixture, con-taining cobalt carbonyl hydride, cobalt carbonyl and butenyl-cobalt tricarbonyl, is reacted with carbon monoxide and excess C1-C4-alkanol in the presence of from 0.5 to 2 moles, per mole of butadiene, of a tert-iary nitrogen base having a pKa of from 3 to 11, at from 80 to 150°C under a pressure of from 300 to 2,000 bar, d)  the resulting reaction mixture is freed from the tertiary nitrogen base  contained therein, down to a content of from 0 1 to 0.3 mole per mole of pentenoic acid ester, and from excess hydrocarbons, and the penten-oic acid ester remaining in the reaction mixture is reacted with carbon monoxide and excess C1-C4-alkanol at from 140 to 200°C and under a pressure of from 100 to 400 bar in the presence of the amounts of cobalt carbonyl and tertiary nitrogen base contained in the reaction mix-ture, O.Z. 0050/033918 e)  the reaction mixture containing cobalt catalyst, butanedicarboxylic acid esters, alkanols, tertiary nitro-gen base, pentenoic acid esters and by-products is treated with an oxidizing agent in the presence of the aqueous acid solution which has been separated off in stage b), and the mixture is separated into an organic phase, from which butanedicarboxylic acid esters are iso-lated by distillation, and an aqueous phase, and f)  the aqueous phase is extracted with C1-C4-alkyl esters of C1-C5-alkanecarboxylic acids and/or alkene-carboxylic acids, the phases are separated, and the aqueous phase thus obtained is freed from alkanols and tertiary nitrogen base by distilling these off and is recycled to stage a).
Patent CA-1124060-A (CA)
Inventor: HIGGINS KENNETH D
IPC: A43C1/00
Filed: 1980-05-23
Granted: 1982-05-25
Abstract: SHOE WITH SUPPORTED HEEL                ABSTRACT OF THE DISCLOSURE          The invention comprises a sport shoe to be used by runners.  In order to obtain increased rear foot stability the shoe comprises an outside counter and a pair of straps extending upwardly and forwardly from the counter, one strap on each side of the shoe.  The end of the straps comprises a lace receiving aperture. The apertures of the normal eye stay and the apertures in each of the straps are substantially aligned in order that the lace used in association with the eye stay may also be passed conveniently through the aperture of each strap.
Patent CA-1118190-A (CA)
Title: Procede de fabrication de corps creux  en alliage d'aluminium et produits ainsi  obtenus
Inventor: COUPRY JEAN
IPC: C22C21/10
Filed: 1980-05-30
Granted: 1982-02-16
Abstract: L'invention est relative à un procédé d'obtention de corps creux en alliage d'aluminium, présentant une grande résistance à l'éclatement et aux produits ainsi obtenus. L'alliage contient (en poids): 7,6 à 9,5 % Zn; 1 à 2 % Cu; 2,4 à 3,5 % Mg; 0,07 à 0,17 % Cr; 0,15 à 0,25 % Mn; 0,08 à 0,14 % Zr; moins de 0,2 % Fe, de 0,15 Si, de 0,10 % Ti, et éventuellement moins de 0,01 % V. Il présente une charge de rupture (sens long) et une résistance à l'éclatement (sens travers) supérieurs ou égales à 660 MPa. Sa structure est caractérisée pour l'absence de gros composés intermétalliques (? 35 .mu.m) après un test de solidification spécifique. Il peut être utilisé dans toutes les applications de sécurité comportant une enceinte sous pression (bouteilles de gaz comprimés, etc..).
Patent CA-1126032-A (CA)
Inventor: ROWLES HOWARD C
IPC: F25J3/02
Filed: 1980-06-30
Granted: 1982-06-22
Abstract: ABSTRACT OF THE DISCLOSURE Enhanced recovery of the methane content of a multi-component stream containing lower boiling gas components is obtained by effecting condensation of at least the major portion of the methane content in a dephlegmator wherein separated lower boiling components are employed as indirect heat exchange refrig-erants.
Patent CA-1148153-A (CA)
Inventor: YAMATSU ISAO
IPC: C07C51/60
Filed: 1980-08-14
Granted: 1983-06-14
Abstract: Abstract of the Disclosure Novel polyprenylcarboxylic acid amides having the general formula     (I) wherein a, b, c and d may be hydrogen or a valence bond between adjacent car-bon atoms, and their method of preparation.  The novel compounds are valuable for the treatment of liver dysfunction.
Patent CA-1146106-A (CA)
Inventor: KACMARCIK DONALD J
IPC: B41J33/38
Filed: 1980-08-19
Granted: 1983-05-10
Abstract: IMPROVED RIBBON FEED AND LIFT MECHANISM                    FOR A TYPEWRITER                        Abstract In a daisy wheel or rotary print wheel typewriter, a single motor (stepper motor) is employed to accomplish both ribbon lift and feed for typewriter ribbon and correction ribbon loaded in a cartridge assembly.  A single motor drive moves a cartridge assembly support about an axis to present either the typewriter ribbon or the correction ribbon to the print point at the print line.  In the first portion of the arc that the cartridge assembly moves, normal typing on the typewriter ribbon occurs, only the feed ratchet for the typewriter ribbon being engaged,  Alternatively, when the rotation is greater, to present a correction ribbon at the print line, the added elevation of the cartridge assembly causes disengagement of the normal ratchet feed for the type-writer ribbon but allows advancement of the correction ribbon.
Patent CA-1122666-A (CA)
Inventor: LESSTER LABAN E
IPC: H01F38/18
Filed: 1980-08-27
Granted: 1982-04-27
Abstract: 14                  48,564 ABSTRACT OF THE DISCLOSURE A  coaxial  inductive  coupler  having  an  inner magnetic core member and a surrounding outer magnetic core member each having respective windings.  The inner magne-tic core is operatively carried by an inner support assem-bly which is additionally connected to an outer protective shell.   The  outer  core  is  disposed within  a  cylinder having at the end thereof a large guide member for facili-tating  insertion  into  the  outer  protective  shell.   A locking mechanism is provided to insure positive coupling and easy release.
Patent CA-1135181-A (CA)
Inventor: SPEECE RICHARD E
IPC: B01F3/04
Filed: 1980-09-12
Granted: 1982-11-09
Abstract: ABSTRACT OF THE DISCLOSURE   Liquid is collected and gasified within the same pressure sealed chamber from which it is displaced.  The liquid is gasified toward saturation under a high pressure for a limited time by recirculation of the gas through the chamber.  Flow control valves establish a closed circuit through which recirculation occurs while the chamber is maintained pressurized as well as to effect displacement of gas saturated liquid from the chamber during spaced intervals of time while the chamber is depressurized.
Patent CA-1164091-A (CA)
Inventor: NEUBAUER MICHAEL L
IPC: H01J23/30
Filed: 1980-11-20
Granted: 1984-03-20
Abstract: Traveling Wave Tube with Frequency Variable Sever Length Abstract In a traveling wave tube (TWT) with a non-dis-persive interaction circuit such as a  helix, the length of the circuit in wavelengths, and hence the gain of the tube, varies with the frequency.  The variations of gain over a very wide bandwidth can cause oscillation problems.  The The invention pro-vides an inverse variation with frequency of the physical length over which the circuit interacts with the beam.  This is done by resonant attenuators coupling to the interaction circuit over various lengths depending on their resonant frequency, the attenuation being enough to effectively remove the interaction circuit wave.  The attenuators are pre-ferably formed of resonant sections of slow-wave circuit deposited on longitudinal ceramic rods such as the helix support rods.
Patent CA-1145359-A (CA)
Inventor: MITA RYUICHI
IPC: C07D203/08
Filed: 1980-12-09
Granted: 1983-04-26
Abstract: ABSTRACT OF THE DISCLOSURE Production of DL-serine by heating a strong acid type cation exchange resin having aziridine-2-carboxylic acid absorbed thereto.  Specifically, an industrial process for producing DL-serine is provided which comprises treating an alpha-halogeno-beta-aminopropionitrile or its mineral acid salt in water or a water-containing organic solvent with an alkali or alkaline earth metal hy-droxide to form an alkali or alkaline earth metal aziridine-2-carboxylate, treat-ing the reaction mixture with a strong acid type cation exchange resin to cause adsorption of aziridine-2-carboxylic acid, and thereafter heating the cation-exchange resin.
Patent CA-1150841-A (CA)
Title: Copier with sorters
Inventor: KIKUCHI HIDEO
IPC: G03G15/00
Filed: 1981-01-13
Granted: 1983-07-26
Abstract: ABSTRACT OF THE DISCLOSURE     A copy production machine composed of a copier and a sorter equipped with a manual insert portion.  This machine is provided with a memory register for memorising the informa-tion on the number of sheets to be inserted manually, a count register for counting the number of sheets for manual insertion, and a circuit for inhibiting the manual insert operation for a predetermined period of time when the contents in the memory register become equal to the contents in the count register, thereby attaining the precise and reliable collation and sorting.
Patent CA-1135761-A (CA)
Inventor: RAY GLEN
IPC: H02K21/46
Filed: 1981-02-09
Granted: 1982-11-16
Abstract: Abstract An armature for electric motors having a magnetic core of stack-ed laminations mounted on a shaft with a plurality of electrically conduc-tive rotor bars disposed in the magnetic core, and also having a number of arch shaped permanent magnets disposed in the core that are cir-cularly spaced from one another and arranged concentrically with the shaft.  Each permanent magnet has a pole of one magnetic polarity on its radially outer face and a pole of opposite polarity on its radially inner face, and is surrounded by magnetic core material at its circumferential ends and radially inner side to form flux return paths, whereby there are two magnetic armature poles for each permanent magnet, the center of the armature is magnetically neutral, and the structure is relatively easy to fabricate.
Patent CA-1151317-A (CA)
Inventor: YOSHIOKA NOBUYUKI
IPC: H01C7/10
Filed: 1981-03-11
Granted: 1983-08-02
Abstract: ABSTRACT OF THE DISCLOSURE         There is provided a method of making a non-linear voltage-dependent  resistor  containing  a  ZnO  element including zinc oxide as its major component by forming or coating a layer of high insulation material on the element.          The layer is formed due to a vapour-solid reaction in the atmosphere of a vapourisable molecular compound containing Sb2O3,   Bi2O4  or  SiO2  at  a  sintering  temperature.          Preferably,  the layer  is  formed  due  to  a vapour-solid reaction in the atmosphere of a vapourization retarding compound  containing  ZnO,  or  SiO2  in  addition  to  the vapourisable molecular compound at a sintering temperature within a sintering vessel.
Patent CA-1149920-A (CA)
Inventor: WILSON JOHN T
IPC: G01R21/133
Filed: 1981-04-06
Granted: 1983-07-12
Abstract: 68                  49,002 ABSTRACT OF THE DISCLOSURE       A circuit interrupter includes a digital trip unit containing a microprocessor.  me circuit interrupter also includes current transformers for sensing current flow through the contacts of the interrupter and for providing operating power to the trip unit.  The current transformers monitoring current flow through the breaker and control potentiometers receiving operator-entered values of the product of line voltage and power factor are connected to the microprocessor to supply it with the values needed to compute real power flow through the in-terrupter and to display the numeric value of this power flow.  The power flow is compared to an operator-entered limit value of peak demand power, and an alarm signal is generated whenever power flow exceeds the limit value peak demand.  Integration capability is also provided to cal-culate energy flow through the contacts in megawatt hours and to present the numeric value of this energy flow.
Patent CA-1163212-A (CA)
Inventor: MERRIMAN HORACE B
IPC: F16L11/18
Filed: 1981-06-19
Granted: 1984-03-06
Abstract: ABSTRACT            Flexible Pipe This invention relates to a flexible pipe which is designed to withstand continual flexing and bending of the pipe and also to withstand high internal pressures in the order of 5000/70001bs per sq.inch.  The pipe (Figure 7) consists of a stainless steel spiral wound core tube 39 encased in two layers of inner plastic liner 37 and 38. The flexible element of the pipe, which withstands the high pressures, consists of a series of rings 120 which have spigot connections and flanges 123.  Adjacent rings 120 are held together by keepers 128 which have radially inwa-rdly projecting engagement features with wedge-shaped surfaces.  The keepers are staggered circumferentially around the pipe.  The keepers may be retained in position by steel bands (not shown) and finally by an outer plastic cover 36.      The rings 120 are sufficiently thick and are of sufficiently high tensile strength to withstand the hoop stress developed when oil or other fluid flows through the pipe at high pressure.  The keepers are used to withstand substantially all of the longitudinal stress.      In an alternative embodiment a wire or group of wires runs centrally down the pipe to withstand the longitudinal stress and is spaced from the pipe by spiders.      A particular use of the pipe is for conveying oil or gas from an under sea oil well terminal to a floating surface reception point such as a buoy or ship.
Patent CA-1148140-A (CA)
Inventor: KUCHERER HARVEY D
IPC: F28F7/00
Filed: 1981-07-09
Granted: 1983-06-14
Abstract: 49,268 ABSTRACT OF THE DISCLOSURE The tube plug comprises a shell having a tapered inner surface against which an externally tapered expander member moves by  application  of  a  pulling  force.   The motion of the expander member relative to the shell causes the shell to expand into contact with a heat exchange tube thereby plugging the tube.  The expander member is arraged so that it is captured within the shell so as to prevent its being dislodged.  The shell also has a plurality of lands on the outside surface thereof for contacting the inner surface of the heat exchange tube.
Patent CA-1180123-A (CA)
Inventor: MEIJER CLUWEN JOHANNES
IPC: H03K4/02
Filed: 1981-10-16
Granted: 1984-12-27
Abstract: ABSTRACT: "An arrangement for generating a sequence of binary-weighted values of an electrical quantity".     The device in accordance with the invention is capable of generating a sequence of values of an electrical quantity (charge or voltage) with the aid of switched capacitances, which values are proportioned as the terms of a geometric sequence. Owing to the switching methods used, first-order errors caused by inaccuracies in the capacitance values of the capacitors are fully eliminated. Furthermore, methods are proposed in order to minimize the influence of inevitable stray capacitances in the arrangement.
Patent CA-1170221-A (CA)
Inventor: MORAVEC DAVID
IPC: B66C23/687
Filed: 1981-10-29
Granted: 1984-07-03
Abstract: TELESCOPING CRANE BOOM                 Abstract of the Disclosure Means and method for extending a fly section of a telescopic crane boom which fly section does not have its own power means.  The crane boom comprises at least a first or fly section, a second section, and a third or base section.  Linearly extendable power means is located within the boom for extending the second from the base sections, being con-nected between the base section-and the second section to effect movement of the latter.  To set up the crane for operation, the power means extends the second section from the base section, a load pin connecting the fly section and the second section is released, and a pair of stop pins engages the fly section in its sides.  The stop pins prevent movement of the fly section relative to the base section. --Thus, when the second section is thereafter retracted into the base section, the fly section is left extended from the second section.  A hole at the inside of the fly section and the load pin are at this point in alignment and the load pin may be inserted to engage both sections.   The power means is now in readiness to independently operate the second section, with the fly section fully extended on the second section.
Patent CA-1180356-A (CA)
Inventor: SAWYER DONALD T
IPC: A62D3/11
Filed: 1981-12-17
Granted: 1985-01-02
Abstract: ABSTRACT OF THE DISCLOSURE           Halogen carbon compounds containing at least three halogen atoms and capable of undergoing bimolecular nucleophilic substitution are degraded by reaction in an aprotic solvent with a strong nucleophile selected from superoxide ion and hydroxide ion.  The process is particularly applicable to compounds in which at least three halogen atoms are covalently joined to a tetrahedral carbon atom.  In a specified embodiment, superoxide ion is electrolytically generated in an aprotic solvent contain-ing a soluble organic electrolyte.  In a further embodiment, the aprotic solvent is dimethyl sulfoxide, which, when converting carbon tetrahalide, forms dimethylsulfone and carbonate.
Patent CA-1182174-A (CA)
Inventor: MALYON DEREK J
IPC: H01S5/0687
Filed: 1982-02-15
Granted: 1985-02-05
Abstract: ABSTRACT OF THE DISCLOSURE     A light source comprises a first laser and a second laser which is arranged so that light from the first laser can be injected into the second. The bias to the lasers is controlled so that the first laser acts as an oscillator and the second laser as a modulator, the output from the modulator being a single longitudinal mode. A low frequency signal is applied to the first laser and detected in the output of the second laser. A phase sensitive detector is responsive to the sensed signal to provide a feedback signal for the second laser such that the cavity modes of the two lasers are aligned automatically.
Patent CA-1148640-A (CA)
Inventor: FRAAS LEWIS M
IPC: H01L31/0687
Filed: 1982-02-17
Granted: 1983-06-21
Abstract: ABSTRACT OF THE DISCLOSURE                  "MULTILAYER PHOTOVOLTAIC CELL"         A new high efficiency, multijunction photovoltaic solar cell for use with a concentrating lens.  This cell comprises an elemental single crystal substrate without an internal light sensitive junction, upon which are two or more successive homog-enous layers of semiconductor material, each layer containing within it a light sensitive p/n junction of a similar polarity, each layer having essentially the same lattice constant as the single crystal substrate, each layer having a shorting junction contact with the layer immediately above and below it, each successive layer adsorbing light energy at a shorter wavelength, and each layer being of sufficient thickness and appropriate composition to develop essentially the same current as the other layers.  The outer surfaces of the top layer and the substrate are provided with electrical contacts for distribution of the electricurrent.  The top contact comprises a layer of transparent conductive material with electrical connections and the whole structure is completed with and antireflection coating over the top.
Patent CA-1183343-A (CA)
Inventor: HARRISON KENNETH J
IPC: C09K19/60
Filed: 1982-02-24
Granted: 1985-03-05
Abstract: SPECIFICATION          TO ALL WHOM IT MAY CONCERN    Be it known that we KENNETH JOHN HARRISON resident of 28 Oakfield Road, Malvern Link, Worcestershire, England, EDWARD PETER RAYNES, resident of 23 Leadon Road, Malvern, Worcestershire, England, FRANCES CAROLYN SAUNDERS resident of 24 Walnut Crescent, Fruitlands, Malvern Wells, Worcestershire, England, and DAVID JOHN THOMPSON, resident of 50 Marle Croft, Old Hall Park, Whitefield, Manchester, England, have invented certain new and useful improvements in ORGANIC MATERIALS and we do hereby declare the following to be a full clear and exact description of the invention, such as will enable others skilled in the art to which it appertains, to make and use the same:                      ABSTRACT a material suitable for a guest-host liquid crystal device com-prises a solution of a liquid crystal material and a pleochroic dye where in the pleochroic dye comprises at least one anthrquinone compound free from water solubilising and ionic substituents and having the formula:                                            Formula I   wherein Q is NH2, OH, alkyl, aryl, NO2 or halo;         n is 0 to 4; each    X independently is H, -SR, -NZ1Z2 or Q; each    R independently is alkyl, aryl or cycloalkyl; Z1 & Z2 are independently H, alkul, cycloalkyl or aryl; provided that there are at least two groups X which are different -SR groups.
Patent CA-1148651-A (CA)
Inventor: LOGAN JAMES D
IPC: G01N29/00
Filed: 1982-05-04
Granted: 1983-06-21
Abstract: ULTRASONIC SHEET MATERIAL   TESTING APPARATUS          Abstract A device for testing sheet material, such as wood veneer, includes a rolling transducer for introducing ultra-sonic signals into the veneer so as to cause travel of the signals generally in the plane of the veneer.  Coupling oil filling this transducer facilitates the transmission of the signals into the veneer.  Another similar rolling transducer is provided to detect the traveling ultrasonic signals.          Each rolling transducer includes a special rim with an annular focusing ring for directing the ultrasonic signals to and from the veneer.  A timer circuit produces a signal representing the travel time taken for an ultrasonic signal to pass between the transducers.  An averaging circuit ob-tains an average of such travel times for each sheet and a grading circuit causes the sheet to be marked with a grade corresponding to the average travel time.  A signal thresh-old detector prevents travel times for detected signals of a magnitude less than a preselected minimum level from being included in the average.  Travel times for detected signals of a magnitude exceeding a noise level are blocked by a noise discriminator from being averaged.  A variable noise level circuit adjusts the magnitude of the noise level at certain times following the transmission of an ultrasonic signal into the veneer.  Detected signals having a travel time which is not between a preselected minimum and maximum time established by a time window circuit are disregarded.  A calibration signal generator provides a signal of a known and adjustable time length for use in adjusting the grade corresponding to travel times.
Patent CA-1182467-A (CA)
Inventor: HEITKAEMPER PETER
IPC: C07C239/00
Filed: 1982-05-14
Granted: 1985-02-12
Abstract: PROCESS FOR THE PREPARATION OF N-MONOSUBSTITUTED O-ALKYLURETHANES                ABSTRACT OF THE DISCLOSURE N-monosubstituted O-alkylurethanes are prepared by reacting a primary amine with an N,N'-diarylurea, preferably diphenylurea and a primary or secondary alcohol at a temperature from 150 to 300°C.  The reactant alcohol has a boiling point which is at least 5°C higher at atmospheric pressure than the aromatic amine from which the urea is derived.  The aromatic monoamine on which the urea is based which forms during the reaction is removed by distillation during the course of the reaction.